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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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纳米Al2O3和NiAl共同强化的铁基ODS合金的铝热合成研究
, PP. 791-798
Keywords: 纳米Al2O3,界面能,拉伸性能,氧化物弥散强化合金
Abstract:
采用铝热合成法制备了Al2O3和NiAl共同增强的铁基氧化物弥散强化(oxidedispersionstrengthened,ODS)合金,研究了Al2O3纳米粒子的大小、分布和运动行为.研究表明,添加TiO2凝胶可以形成大小约为10nm的Al2O3纳米粒子,这些Al2O3纳米粒子由于界面能的作用全部与NiAl相结合.当添加TiO2凝胶的质量分数达到1.24%时,合金的拉伸强度达到最大值849MPa,并保持13%的延伸率.
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